“There were no significant associations between lifetime use of any psychedelics, or use of LSD in the past year, and increased rate of any of the mental health outcomes,” Pål-Ørjan Johansen and Teri Krebs from the Norwegian University of Science and Technology in Trondheim concluded in their study published in the PLOS One journal on Tuesday.

“Rather, in several cases psychedelic use was associated with a lower rate of mental health problems.”

For the study, the researchers analyzed data on the more than 130,000 Americans who took drug use surveys between 2001 and 2004, of which 22,000 had used a psychedelic drug at least once.